Holbrook Island Sanctuary State Park

About this park

Holbrook Island Sanctuary State Park, established in 1971, spans 1,345 acres on a peninsula in Brooksville along Penobscot Bay, deliberately managed with a lighter touch than most of Maine's other state parks. The land was donated by Anita Harris specifically to be preserved as a wildlife sanctuary, and the park's management still reflects that original conservation-first intent more than 50 years later. Rather than developed beaches or extensive campgrounds, Holbrook Island offers quiet hiking trails through varied habitat, from shoreline and salt marsh to forest and open meadow, along with kayaking access to the surrounding bay waters. Birdwatchers are drawn to the sanctuary's deliberately undeveloped character, which supports a wide range of species with minimal human disturbance, and the park has become known locally for its lichens and other understudied flora, the subject of periodic ranger-led programs. Swimming is possible at a small beach area, but the park's overall identity leans toward quiet nature observation rather than active recreation, a genuine outlier among Maine's more amenity-focused coastal parks. Its position on the relatively undeveloped Blue Hill peninsula, away from the busier Camden and Bar Harbor tourist corridors, gives Holbrook Island a distinctly peaceful, off-the-beaten-path character.